One of my three grammas gave us some manju today at my brother's bday party.
That powdery stuff is kinako (soybean flour). Yeah...it looks like sand, but it tastes good. I don't normally like manju all that much, but this was pretty good. Three different kinds of textures: sandy, rice-y, and slightly-smooshed-red-bean-y. The kinako makes it seem less sweet. Here is another kind of manju.
Why, oh why does it turn my pictures on their sides sometimes??? Here are some other types of manju (Japanese pastry):